https://vapi.ai/community/m/1443616611767418900
VAPI fix Failed to save workflow: each value in nodes.tool.server.credentialld must be a UUID - VAPI
Nov 27, 2025 - this issue im facing i was building this ai mock interview prep tool by watching the youtube video and im currently stuck with this error in VAPI please help me
fix failedvapisaveworkflow
https://vapi.ai/community/m/1443556006587269130
Workflow - Endcall node - each value in nodes.tool.server.credentialId must be a UUID - VAPI
nodes tool serverworkflow