# About CT2001 rule ID for -ACPTFL variable **URL:** \ **Category:** Support\ **Created:** [April 28, 2026, 2:42am UTC](https://forum.certara.com/t/about-ct2001-rule-id-for-acptfl-variable/4385 "2026-04-28T02:42:50Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![minji.lee](https://avatars.discourse-cdn.com/v4/letter/m/77aa72/32.png) [@minji.lee](https://forum.certara.com/u/minji.lee)\ **Post date:** [April 28, 2026, 2:42am UTC](https://forum.certara.com/t/about-ct2001-rule-id-for-acptfl-variable/4385/1 "2026-04-28T02:42:50Z")
Hello. When I validated SDTM using the FDA (2508.1) engine and the SDTM-IG 3.4 (FDA) configuration in Pinnacle 21 Community Version 4.1.0, a CT2001 error occurred in the -ACPTFL of RS/TR domain. The message was as follows: TRACPTFL value not found in ‘No Yes Response (Yes only)’ non-extensible codelist. However, according to SDTM IG V3.4, the -ACTPFL in the RS/TR domain has a NY CT, which differs from the MS/OE domain. The CDISC note for the MS/OE domain specifies that it is expected to be “Y” or null. However, there is no such note for the RS/TR domain. Please confirm whether this error will be resolved in the RS/TR domain. Thank you for your help! Best regards, Minji ---
**Author:** ![Sergiy](https://sea1.discourse-cdn.com/certara/user_avatar/forum.certara.com/sergiy/32/2553_2.png) [@Sergiy](https://forum.certara.com/u/Sergiy)\ **Post date:** [April 29, 2026, 2:45pm UTC](https://forum.certara.com/t/about-ct2001-rule-id-for-acptfl-variable/4385/2 "2026-04-29T14:45:13Z")
Hi Minji, Thank you for reporting this issue! We are evaluating it now. Kind Regards, Sergiy ---
**Author:** ![minji.lee](https://avatars.discourse-cdn.com/v4/letter/m/77aa72/32.png) [@minji.lee](https://forum.certara.com/u/minji.lee)\ **Post date:** [October 22, 2026, 7:01am UTC](https://forum.certara.com/t/about-ct2001-rule-id-for-acptfl-variable/4385/4 "2026-10-22T07:01:45Z")
Hi Sergiy, Thank you for letting me know. Could you let me know if there are any updates? Best regards, MinJi