# Handling long lead time parts **URL:** \ **Category:** Epicor ERP 10\ **Tags:** scheduling, lead-time\ **Created:** [November 18, 2019, 6:36pm UTC](https://www.epiusers.help/t/handling-long-lead-time-parts/61953 "2019-11-18T18:36:29Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Matt\_Belshaw](https://www.epiusers.help/user_avatar/www.epiusers.help/matt_belshaw/32/24917_2.png) [@Matt\_Belshaw](https://www.epiusers.help/u/Matt_Belshaw)\ **Post date:** [November 18, 2019, 6:36pm UTC](https://www.epiusers.help/t/handling-long-lead-time-parts/61953/1 "2019-11-18T18:36:29Z")
Are there best practices around using long lead time purchased parts e.g. 120+ days. Our company has a few of those parts that impact when we can schedule a job but we are seeing unusual results when running MRP. ---
**Author:** ![Nancy\_Hoyt](https://www.epiusers.help/user_avatar/www.epiusers.help/nancy_hoyt/32/17746_2.png) [@Nancy\_Hoyt](https://www.epiusers.help/u/Nancy_Hoyt)\ **Post date:** [November 18, 2019, 7:25pm UTC](https://www.epiusers.help/t/handling-long-lead-time-parts/61953/2 "2019-11-18T19:25:39Z")
Hi Matt, A couple of initial thoughts on your question: We found days of supply very important to ensure that POs that were not coming for a long long time were counted and we didn’t keep seeing suggestions to get them in. Also, we have little to no control on expediting these long lead POs, so we lock the date and quantity on the PO release so that we do not get change suggestions. Nancy ---
**Author:** ![Matt\_Belshaw](https://www.epiusers.help/user_avatar/www.epiusers.help/matt_belshaw/32/24917_2.png) [@Matt\_Belshaw](https://www.epiusers.help/u/Matt_Belshaw)\ **Post date:** [November 18, 2019, 7:32pm UTC](https://www.epiusers.help/t/handling-long-lead-time-parts/61953/3 "2019-11-18T19:32:33Z")
Thanks Nancy. I will review the application help on those items to get a better understanding. Regards Matt