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Transaction API : Check number not valid Error

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Vikram Singh

Programmer
Jan 3, 2018
39
KW
I'm getting [highlight #EDD400]Check number not valid [/highlight] error on PostTransactionEx method by using Simphony Transaction API.
I was able to post-check till the last restart of my POS. After the restart, this error returned. Please help
 
Maybe it already exists, or it is caused by other parameters.
 
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