# request !== response **URL:** \ **Category:** APIs & Integrations\ **Tags:** professional\ **Created:** [June 8, 2023, 5:36pm UTC](https://community.hubspot.com/t/request-response/82975 "2023-06-08T17:36:20Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![MakeDevelopment](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@MakeDevelopment](https://community.hubspot.com/u/MakeDevelopment)\ **Post date:** [June 8, 2023, 5:36pm UTC](https://community.hubspot.com/t/request-response/82975/1 "2023-06-08T17:36:20Z")
Hello there, I have a problem, it’s not related to performance, but it’s confusing. By endpoint Post **[https://api.hubapi.com/crm/v3/objects/contacts/search](https://api.hubapi.com/crm/v3/objects/contacts/search)** I want to filter it by a custom field - it’s a number with 19 characters. In response, I get a modified number, the last few digits turn into zeros. ![](https://d2qpr2jzcazej7.cloudfront.net/original/3X/a/d/adc68094cf04c493196c99477b7380615715c00f.png) Why such behavior? Thanks in adv! ---
**Author:** ![himanshurauthan](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/himanshurauthan/32/53076_2.png) [@himanshurauthan](https://community.hubspot.com/u/himanshurauthan)\ **Post date:** [June 9, 2023, 8:24am UTC](https://community.hubspot.com/t/request-response/82975/2 "2023-06-09T08:24:22Z")
Hello @MakeDevelopment You are using 19 digits. HubSpot only supports numbers with up to 18 digits. When you try to filter by a custom field with more than 18 digits, the API will automatically truncate the number to 18 digits. ---
**Author:** ![MakeDevelopment](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@MakeDevelopment](https://community.hubspot.com/u/MakeDevelopment)\ **Post date:** [June 9, 2023, 8:31am UTC](https://community.hubspot.com/t/request-response/82975/3 "2023-06-09T08:31:57Z")
Hi @himanshurauthan Thanks for the reply, it’s all clear now 🙂 Is this mentioned somewhere in the documentation?