diff --git a/app/api/missions/mission-created/route.ts b/app/api/missions/mission-created/route.ts
index c5403be..aec97c4 100644
--- a/app/api/missions/mission-created/route.ts
+++ b/app/api/missions/mission-created/route.ts
@@ -54,7 +54,13 @@ export async function POST(request: Request) {
     logger.debug('Received mission-created data', {
       hasMissionId: !!body.missionId,
       hasName: !!body.name,
-      hasCreatorId: !!body.creatorId
+      hasCreatorId: !!body.creatorId,
+      gitRepoUrl: body.gitRepoUrl,
+      leantimeProjectId: body.leantimeProjectId,
+      documentationCollectionId: body.documentationCollectionId,
+      rocketchatChannelId: body.rocketchatChannelId,
+      gitRepoUrlType: typeof body.gitRepoUrl,
+      rocketchatChannelIdType: typeof body.rocketchatChannelId,
     });
     
     // Validation des champs requis
@@ -125,28 +131,71 @@ export async function POST(request: Request) {
       rocketChatChannelId?: string | null;
     } = {};
     
+    // Helper function to check if a value is valid
+    const isValidValue = (value: any, type?: 'gitea' | 'outline' | 'rocketchat' | 'leantime'): boolean => {
+      if (value === null || value === undefined) return false;
+      if (typeof value === 'string') {
+        const trimmed = value.trim();
+        if (trimmed === '' || trimmed === '0' || trimmed === 'null' || trimmed === 'undefined') return false;
+        
+        // Additional validation based on type
+        if (type === 'gitea') {
+          // Reject Outline collection paths (they start with /collection/)
+          if (trimmed.startsWith('/collection/')) return false;
+          // Reject if it doesn't look like a URL or repo path
+          if (!trimmed.includes('http') && !trimmed.includes('/') && trimmed.length < 3) return false;
+        }
+        if (type === 'outline') {
+          // Outline IDs should be UUIDs or paths
+          if (trimmed.startsWith('/collection/')) return true; // This is valid for Outline
+        }
+        if (type === 'rocketchat') {
+          // RocketChat channel IDs should be alphanumeric strings
+          if (trimmed.length < 3) return false;
+        }
+        return true;
+      }
+      if (typeof value === 'number') return value !== 0;
+      return true;
+    };
+    
     // Mapper les champs N8N vers notre schéma Prisma
-    // Vérifier que les valeurs ne sont pas des chaînes vides
+    // Vérifier que les valeurs ne sont pas des chaînes vides, "0", "null", "undefined", etc.
+    // ET vérifier qu'elles correspondent au bon type (pas de mélange Gitea/Outline)
     if (body.gitRepoUrl !== undefined) {
-      updateData.giteaRepositoryUrl = (body.gitRepoUrl && body.gitRepoUrl.trim() !== '') ? body.gitRepoUrl : null;
-      logger.debug('Updating giteaRepositoryUrl', { hasUrl: !!updateData.giteaRepositoryUrl, value: body.gitRepoUrl });
+      const isValid = isValidValue(body.gitRepoUrl, 'gitea');
+      updateData.giteaRepositoryUrl = isValid ? body.gitRepoUrl : null;
+      logger.debug('Updating giteaRepositoryUrl', { 
+        hasUrl: !!updateData.giteaRepositoryUrl, 
+        value: body.gitRepoUrl, 
+        isValid,
+        isOutlinePath: typeof body.gitRepoUrl === 'string' && body.gitRepoUrl.trim().startsWith('/collection/')
+      });
     }
     
     if (body.leantimeProjectId !== undefined) {
       // N8N peut retourner un number, on le convertit en string
       const projectId = body.leantimeProjectId ? String(body.leantimeProjectId).trim() : '';
-      updateData.leantimeProjectId = projectId !== '' ? projectId : null;
-      logger.debug('Updating leantimeProjectId', { hasId: !!updateData.leantimeProjectId, value: body.leantimeProjectId });
+      const isValid = isValidValue(projectId, 'leantime');
+      updateData.leantimeProjectId = isValid ? projectId : null;
+      logger.debug('Updating leantimeProjectId', { hasId: !!updateData.leantimeProjectId, value: body.leantimeProjectId, isValid });
     }
     
     if (body.documentationCollectionId !== undefined) {
-      updateData.outlineCollectionId = (body.documentationCollectionId && body.documentationCollectionId.trim() !== '') ? body.documentationCollectionId : null;
-      logger.debug('Updating outlineCollectionId', { hasId: !!updateData.outlineCollectionId, value: body.documentationCollectionId });
+      const isValid = isValidValue(body.documentationCollectionId, 'outline');
+      updateData.outlineCollectionId = isValid ? body.documentationCollectionId : null;
+      logger.debug('Updating outlineCollectionId', { hasId: !!updateData.outlineCollectionId, value: body.documentationCollectionId, isValid });
     }
     
     if (body.rocketchatChannelId !== undefined) {
-      updateData.rocketChatChannelId = (body.rocketchatChannelId && body.rocketchatChannelId.trim() !== '') ? body.rocketchatChannelId : null;
-      logger.debug('Updating rocketChatChannelId', { hasId: !!updateData.rocketChatChannelId, value: body.rocketchatChannelId });
+      const isValid = isValidValue(body.rocketchatChannelId, 'rocketchat');
+      updateData.rocketChatChannelId = isValid ? body.rocketchatChannelId : null;
+      logger.debug('Updating rocketChatChannelId', { 
+        hasId: !!updateData.rocketChatChannelId, 
+        value: body.rocketchatChannelId, 
+        isValid,
+        valueType: typeof body.rocketchatChannelId
+      });
     }
     
     // Vérifier qu'il y a au moins un champ à mettre à jour
diff --git a/app/mission-tab/[missionId]/page.tsx b/app/mission-tab/[missionId]/page.tsx
index 8e854b3..d8eeb80 100644
--- a/app/mission-tab/[missionId]/page.tsx
+++ b/app/mission-tab/[missionId]/page.tsx
@@ -384,14 +384,50 @@ export default function MissionTabDetailPage() {
           )}
 
           {/* Ressources Métiers */}
-          {((mission.rocketChatChannelId && mission.rocketChatChannelId.trim() !== '') || 
-            (mission.outlineCollectionId && mission.outlineCollectionId.trim() !== '') || 
-            (mission.giteaRepositoryUrl && mission.giteaRepositoryUrl.trim() !== '') || 
-            (mission.leantimeProjectId && mission.leantimeProjectId.toString().trim() !== '')) && (
+          {(() => {
+            // Helper function to check if a value is valid (not null, not undefined, not empty string, not "0", not "null", not "undefined")
+            const isValid = (value: any): boolean => {
+              if (value === null || value === undefined) return false;
+              if (typeof value === 'string') {
+                const trimmed = value.trim();
+                return trimmed !== '' && trimmed !== '0' && trimmed !== 'null' && trimmed !== 'undefined';
+              }
+              if (typeof value === 'number') return value !== 0;
+              return true;
+            };
+            
+            const hasRocketChat = isValid(mission.rocketChatChannelId);
+            const hasOutline = isValid(mission.outlineCollectionId);
+            const hasGitea = isValid(mission.giteaRepositoryUrl);
+            const hasLeantime = isValid(mission.leantimeProjectId);
+            
+            console.log('Ressources Métiers check (mission-tab):', {
+              hasRocketChat,
+              hasOutline,
+              hasGitea,
+              hasLeantime,
+              rocketChatValue: mission.rocketChatChannelId,
+              outlineValue: mission.outlineCollectionId,
+              giteaValue: mission.giteaRepositoryUrl,
+              leantimeValue: mission.leantimeProjectId,
+            });
+            
+            return hasRocketChat || hasOutline || hasGitea || hasLeantime;
+          })() && (
             <div className="bg-white rounded-lg shadow-sm border border-gray-100 p-6">
               <h2 className="text-lg font-semibold text-gray-900 mb-4">Ressources Métiers</h2>
               <div className="space-y-3">
-                {mission.rocketChatChannelId && mission.rocketChatChannelId.trim() !== '' && (() => {
+                {(() => {
+                  const isValid = (value: any): boolean => {
+                    if (value === null || value === undefined) return false;
+                    if (typeof value === 'string') {
+                      const trimmed = value.trim();
+                      return trimmed !== '' && trimmed !== '0' && trimmed !== 'null' && trimmed !== 'undefined';
+                    }
+                    return true;
+                  };
+                  return isValid(mission.rocketChatChannelId);
+                })() && (() => {
                   // Build RocketChat URL: parole.slm-lab.net/channel/[channelId]
                   // If it's already a full URL, use it; otherwise build from ID
                   const rocketChatUrl = mission.rocketChatChannelId.startsWith('http') 
@@ -416,7 +452,17 @@ export default function MissionTabDetailPage() {
                   );
                 })()}
                 
-                {mission.outlineCollectionId && mission.outlineCollectionId.trim() !== '' && (() => {
+                {(() => {
+                  const isValid = (value: any): boolean => {
+                    if (value === null || value === undefined) return false;
+                    if (typeof value === 'string') {
+                      const trimmed = value.trim();
+                      return trimmed !== '' && trimmed !== '0' && trimmed !== 'null' && trimmed !== 'undefined';
+                    }
+                    return true;
+                  };
+                  return isValid(mission.outlineCollectionId);
+                })() && (() => {
                   // Build Outline URL: chapitre.slm-lab.net/collection/[collectionId]
                   // If it's already a full URL, use it; otherwise build from ID
                   const outlineUrl = mission.outlineCollectionId.startsWith('http') 
@@ -441,7 +487,17 @@ export default function MissionTabDetailPage() {
                   );
                 })()}
                 
-                {mission.giteaRepositoryUrl && mission.giteaRepositoryUrl.trim() !== '' && (() => {
+                {(() => {
+                  const isValid = (value: any): boolean => {
+                    if (value === null || value === undefined) return false;
+                    if (typeof value === 'string') {
+                      const trimmed = value.trim();
+                      return trimmed !== '' && trimmed !== '0' && trimmed !== 'null' && trimmed !== 'undefined';
+                    }
+                    return true;
+                  };
+                  return isValid(mission.giteaRepositoryUrl);
+                })() && (() => {
                   // Use mission name (sanitized) as repo name
                   const repoName = sanitizeMissionName(mission.name);
                   
@@ -472,7 +528,18 @@ export default function MissionTabDetailPage() {
                   );
                 })()}
                 
-                {mission.leantimeProjectId && mission.leantimeProjectId.toString().trim() !== '' && (() => {
+                {(() => {
+                  const isValid = (value: any): boolean => {
+                    if (value === null || value === undefined) return false;
+                    if (typeof value === 'string') {
+                      const trimmed = value.trim();
+                      return trimmed !== '' && trimmed !== '0' && trimmed !== 'null' && trimmed !== 'undefined';
+                    }
+                    if (typeof value === 'number') return value !== 0;
+                    return true;
+                  };
+                  return isValid(mission.leantimeProjectId);
+                })() && (() => {
                   // Build Leantime URL: agilite.slm-lab.net/projects/showProject/[projectId]
                   // If it's already a full URL, use it; otherwise build from ID
                   const leantimeUrl = mission.leantimeProjectId.startsWith('http') 
diff --git a/app/missions/[missionId]/page.tsx b/app/missions/[missionId]/page.tsx
index 7286988..e12327d 100644
--- a/app/missions/[missionId]/page.tsx
+++ b/app/missions/[missionId]/page.tsx
@@ -94,6 +94,16 @@ export default function MissionDetailPage() {
         }
         const data = await response.json();
         console.log("Mission details:", data);
+        console.log("Integration IDs:", {
+          rocketChatChannelId: data.rocketChatChannelId,
+          outlineCollectionId: data.outlineCollectionId,
+          giteaRepositoryUrl: data.giteaRepositoryUrl,
+          leantimeProjectId: data.leantimeProjectId,
+          rocketChatType: typeof data.rocketChatChannelId,
+          outlineType: typeof data.outlineCollectionId,
+          giteaType: typeof data.giteaRepositoryUrl,
+          leantimeType: typeof data.leantimeProjectId,
+        });
         setMission(data);
         setEditedPlan(data.actionPlan || "");
       } catch (error) {
@@ -604,14 +614,50 @@ export default function MissionDetailPage() {
           )}
 
           {/* Ressources Métiers */}
-          {((mission.rocketChatChannelId && mission.rocketChatChannelId.trim() !== '') || 
-            (mission.outlineCollectionId && mission.outlineCollectionId.trim() !== '') || 
-            (mission.giteaRepositoryUrl && mission.giteaRepositoryUrl.trim() !== '') || 
-            (mission.leantimeProjectId && mission.leantimeProjectId.toString().trim() !== '')) && (
+          {(() => {
+            // Helper function to check if a value is valid (not null, not undefined, not empty string, not "0", not "null", not "undefined")
+            const isValid = (value: any): boolean => {
+              if (value === null || value === undefined) return false;
+              if (typeof value === 'string') {
+                const trimmed = value.trim();
+                return trimmed !== '' && trimmed !== '0' && trimmed !== 'null' && trimmed !== 'undefined';
+              }
+              if (typeof value === 'number') return value !== 0;
+              return true;
+            };
+            
+            const hasRocketChat = isValid(mission.rocketChatChannelId);
+            const hasOutline = isValid(mission.outlineCollectionId);
+            const hasGitea = isValid(mission.giteaRepositoryUrl);
+            const hasLeantime = isValid(mission.leantimeProjectId);
+            
+            console.log('Ressources Métiers check:', {
+              hasRocketChat,
+              hasOutline,
+              hasGitea,
+              hasLeantime,
+              rocketChatValue: mission.rocketChatChannelId,
+              outlineValue: mission.outlineCollectionId,
+              giteaValue: mission.giteaRepositoryUrl,
+              leantimeValue: mission.leantimeProjectId,
+            });
+            
+            return hasRocketChat || hasOutline || hasGitea || hasLeantime;
+          })() && (
             <div className="bg-white rounded-lg shadow-sm border border-gray-100 p-6">
               <h2 className="text-xl font-semibold text-gray-800 mb-4">Ressources Métiers</h2>
               <div className="space-y-3">
-                {mission.rocketChatChannelId && mission.rocketChatChannelId.trim() !== '' && (() => {
+                {(() => {
+                  const isValid = (value: any): boolean => {
+                    if (value === null || value === undefined) return false;
+                    if (typeof value === 'string') {
+                      const trimmed = value.trim();
+                      return trimmed !== '' && trimmed !== '0' && trimmed !== 'null' && trimmed !== 'undefined';
+                    }
+                    return true;
+                  };
+                  return isValid(mission.rocketChatChannelId);
+                })() && (() => {
                   // Build RocketChat URL: parole.slm-lab.net/channel/[channelId]
                   // If it's already a full URL, use it; otherwise build from ID
                   const rocketChatUrl = mission.rocketChatChannelId.startsWith('http') 
@@ -636,7 +682,17 @@ export default function MissionDetailPage() {
                   );
                 })()}
                 
-                {mission.outlineCollectionId && mission.outlineCollectionId.trim() !== '' && (() => {
+                {(() => {
+                  const isValid = (value: any): boolean => {
+                    if (value === null || value === undefined) return false;
+                    if (typeof value === 'string') {
+                      const trimmed = value.trim();
+                      return trimmed !== '' && trimmed !== '0' && trimmed !== 'null' && trimmed !== 'undefined';
+                    }
+                    return true;
+                  };
+                  return isValid(mission.outlineCollectionId);
+                })() && (() => {
                   // Build Outline URL: chapitre.slm-lab.net/collection/[collectionId]
                   // If it's already a full URL, use it; otherwise build from ID
                   const outlineUrl = mission.outlineCollectionId.startsWith('http') 
@@ -661,7 +717,17 @@ export default function MissionDetailPage() {
                   );
                 })()}
                 
-                {mission.giteaRepositoryUrl && mission.giteaRepositoryUrl.trim() !== '' && (() => {
+                {(() => {
+                  const isValid = (value: any): boolean => {
+                    if (value === null || value === undefined) return false;
+                    if (typeof value === 'string') {
+                      const trimmed = value.trim();
+                      return trimmed !== '' && trimmed !== '0' && trimmed !== 'null' && trimmed !== 'undefined';
+                    }
+                    return true;
+                  };
+                  return isValid(mission.giteaRepositoryUrl);
+                })() && (() => {
                   // Use mission name (sanitized) as repo name
                   const repoName = sanitizeMissionName(mission.name);
                   
@@ -692,7 +758,18 @@ export default function MissionDetailPage() {
                   );
                 })()}
                 
-                {mission.leantimeProjectId && mission.leantimeProjectId.toString().trim() !== '' && (() => {
+                {(() => {
+                  const isValid = (value: any): boolean => {
+                    if (value === null || value === undefined) return false;
+                    if (typeof value === 'string') {
+                      const trimmed = value.trim();
+                      return trimmed !== '' && trimmed !== '0' && trimmed !== 'null' && trimmed !== 'undefined';
+                    }
+                    if (typeof value === 'number') return value !== 0;
+                    return true;
+                  };
+                  return isValid(mission.leantimeProjectId);
+                })() && (() => {
                   // Build Leantime URL: agilite.slm-lab.net/projects/showProject/[projectId]
                   // If it's already a full URL, use it; otherwise build from ID
                   const leantimeUrl = mission.leantimeProjectId.startsWith('http')