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SAP CPI Message Mapping: weird XSD validation error

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Dear colleagues,

I am absolutely confused with the behavior of CPI Message Mapping. When I upload an XSD file as a source message schema, it is just fine. No compaints. When I upload EXACTLY the same file as a target message schema, I get a validation error. Of course, no useful error message, anything that could give me any indication.

Just to be very clear - I am uploading the same file only to confirm my suspection there is a problem in CPI, not in my XSD, after playing around several hours with x variants of XSD file. XSD is really not a rocket science, so it seems there is a bug in the system. Have any of you run into a similar trouble and is there a way to deal with it, please?

To give you some more background, I tried to upload a JSON schema in it first, to see if it would work. Of course it did not, but maybe it broke something somewhere in a buffered table, who knows... any idea how to clear it? Reset to factory settings?

I don't want to resort to Groovy mapping, because I expect frequent changes in the structure, so I would prefer to have it in an independent message mapping artifact. 

Any hints really appreciated!

Best regards


Active Contributor
It's not an XSD error, but it's an indication that the mapping is incomplete because you have mandatory target fields with no value determination in your mapping.

Accepted Solutions (1)

Accepted Solutions (1)

Active Contributor

Hello ,

These fields occurrence is 1 to 1 that's the reason you are getting validation error. Either you map this with source data or right click on those field and map with constant.

Answers (0)