Request for Quotation Supplier is not a valid parent DocType for Request for Quotation Supplier

Hi team,
we are facing one issue while submitting the request for quotation
Request for Quotation Supplier is not a valid parent Doctype for Request for Quotation Supplier.
Anyone have any idea on the same

Hi @Umasankar.A ,

We are having the same issue in one of the custom child table Doctype. Did you manage to get this solved. If so, can you please let us know the solution for the same. It will be of a great help.

Thanks.

Just to update for future reference. Enabled Developer mode and then ran through - it worked. Now we disabled Developer mode and it is working continuously. No issues.