We are trying to print a contract through T-Code ME9K but system is displaying message”No suitable purchasing documents found" . When checked by our ABAPer found that there is no entry in table NAST for that contract. After that we tried to cancel the contract through ME35K but system is showing message as "Enter reason for change for version” . So my question is why we are not able to cancel one contract through t-code ME35K and what is the meaning of message ”Enter reason for change for version” . Could some one forward any information related to my problem.