Dear Bhaumik,
Please check if you using the same service number with different price in the same contract or the same PR.
This will bring the error. SAP generally advises you not to use different prices (or other entries
for the same service number. Instead, SAP recommends you to create different service masters.
If this is the case and you it to be warning message, you may want check if you can configure the error as warning.
Regards,
ian Wong Loke Foong