I have configured 850 validation specs specifying segment BEG as mandatory.
Now, when I feed an EDI document with no BEG segment, the Boomi process goes through without raising any exceptions.
I have also inserted segments multiple times (where EDI spec is created to have that segment only one time). However, this also doesn't raise any exceptions. And the mapper activity EDI to XML (that I have configured) simply passes through.
Is validation of EDI document as per the EDI specifications is not possible out of the box in Boomi EDI?