We are using a third-party app, Calendly, to create event invites (i.e. tasks) in Salesforce when someone uses Calendly to schedule a task. For some reason, even though our reports can pick up on and identify the InviteeUuid__c field, which is never null or unable to be found, the flow cannot find the record based on the InviteeUuid__c field. Here's the error message. Calendly said they had no idea why this wasn't working. I also checked my permissions and I'm not sure what I'd be looking for - but this custom InviteeUuid__c filed is accessible by anyone when looking at the field's security settings. What am I missing?


Error element Custom_Lookup (FlowRecordLookup).
This error occurred when the flow tried to look up records: An unexpected error occurred. Please include this ErrorId if you contact support: 2068702785-41751 (-548403183). For details, see API Exceptions.

This report lists the elements that the flow interview executed. The report is a beta feature.
We welcome your feedback on IdeaExchange.

Flow Details
Flow Name: CancelEvent
Type: Autolaunched Flow
Version: 15
Status: Active

Flow Interview Details
Interview Label: CancelFlow 7/5/2017 4:57 PM
Current User: Allie Gold (005E0000005zQCU)
Start time: 7/5/2017 4:57 PM
Duration: 0 seconds

How the Interview Started
Allie Gold (005E0000005zQCU) started the flow interview.
Some of this flow's variables were set when the interview started.
NewCalendlyAction = a5G44000000CiaYEAS

RECORD QUERY: Custom_Lookup
Find one Task record where:
InviteeUuid__c Equals {!NewCalendlyAction.InviteeUuid__c} (EBDF7EXH3DUXYFPU)
Result
Failed to find record.

Error Occurred: This error occurred when the flow tried to look up records: An unexpected error occurred. Please include this ErrorId if you contact support: 2068702785-41751 (-548403183). For details, see API Exceptions.