Hi there
Workflow was fine until MySQL credentials suddenly stopped working.
The credential itself works and can be tested successfully. But when I create a new MySQL node and assign the credential it produces the error: Credential with ID "tC1TggL2PzLMu8r1" does not exist for type "mySql". I’m then unable to assign any MySQL credential to the node.
Anyone know what’s going on here?
Welcome @sac.mm.xlv to our community! I’m Jay and I am a n8n verified creator.
This error usually means the credential exists but is scoped to a different context than the workflow. Check whether the credential was created under a personal scope vs. a project scope - if you’re working inside a Project in n8n, credentials need to be created within that same project to be assignable to nodes. Go to the credential, open it, and check the “Owned by” or project field. If it’s under a different owner, recreate it inside the correct project and then reassign it to the node.
