Condition type is not available in VK11

Hi MM Guru's,

I have question regarding the condition record creation for contracts. I have to create multiple validity periods with price for single item for the contract items.

I am using MEK1 tcode to do the same. But when try i enter two records with same line item number. It giving me an warning messageu2019The condition is being processed in the current sessionu2019 and saving only the first records. When I searched the forums I got one more tcode VK11 but my condition type is doesnu2019t exists in the possible entries.

Please let me know how to populate my condition type for contracts in VK11.

Regards,

Praveen.