# Erro message

**URL:** <https://connective.celigo.com/t/erro-message/3026>\
**Category:** Integrator.io\
**Tags:** authentication, error-mgmt, error-handling\
**Created:** [August 3, 2023, 10:10am UTC](https://connective.celigo.com/t/erro-message/3026 "2023-08-03T10:10:46Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![shailareddy](https://avatars.discourse-cdn.com/v4/letter/s/97f17d/32.png) [@shailareddy](https://connective.celigo.com/u/shailareddy)\
**Post date:** [August 3, 2023, 10:10am UTC](https://connective.celigo.com/t/erro-message/3026/1 "2023-08-03T10:10:46Z")

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When I am trying to execute a realtime flow, am getting the error as {"error":"invalid\_grant"}. Why this will happen?

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**Author:** ![tylerlamparter](https://sea1.discourse-cdn.com/flex001/user_avatar/connective.celigo.com/tylerlamparter/32/9204_2.png) [@tylerlamparter](https://connective.celigo.com/u/tylerlamparter)\
**Post date:** [August 4, 2023, 2:03am UTC](https://connective.celigo.com/t/erro-message/3026/2 "2023-08-04T02:03:26Z")

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@shailareddy what type of realtime flow? Using webhook, NetSuite, Salesforce? Sounds like some sort of authentication error.