# SynchronizeWithCentral in Document return false!

**URL:** <https://forum.dynamobim.com/t/synchronizewithcentral-in-document-return-false/65735>\
**Category:** Revit\
**Tags:** dynamo\
**Created:** [July 1, 2021, 8:19pm UTC](https://forum.dynamobim.com/t/synchronizewithcentral-in-document-return-false/65735 "2021-07-01T20:19:59Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mrkpkimEMSRM](https://avatars.discourse-cdn.com/v4/letter/m/9fc348/32.png) [@mrkpkimEMSRM](https://forum.dynamobim.com/u/mrkpkimEMSRM)\
**Post date:** [July 1, 2021, 8:19pm UTC](https://forum.dynamobim.com/t/synchronizewithcentral-in-document-return-false/65735/1 "2021-07-01T20:19:59Z")

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Hello,

I’m having a hard time figuring out why my SynchronizeWithCentral node is throwing false. I’m using a central file, not a detached one. I fed all the values in and it seems straight forward. (Python Script is just the exploded version of SynchronizeWithCentral node).

 ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/2/3/239440768b06d56eb30eedd00e91d6ebab3c917f.png)

I also looked into an old post

> [@SynchronizeWithCentral in Document return false](https://forum.dynamobim.com/t/synchronizewithcentral-in-document-return-false/59882/2):
>
> Hi @CaAnd, Welcome to the Dynamo forum. It’s a Revit thing and not a Dynamo problem. It’s not possible to synchronise a detached model. You need first to save it and after you will be able to synchronize it.

but his problem was bit different where he wanted to open the file in a detached mode.

here is the code for the node

> <https://github.com/albandechasteigner/GeniusLociForDynamo/blob/master/Nodes/SynchronizeWithCentral%20in%20Document.dyf>

Thank you very much

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<div class="post-metadata">

**Author:** ![Alban\_de\_Chasteigner](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/alban_de_chasteigner/32/39650_2.png) [@Alban\_de\_Chasteigner](https://forum.dynamobim.com/u/Alban_de_Chasteigner)\
**Post date:** [July 1, 2021, 8:33pm UTC](https://forum.dynamobim.com/t/synchronizewithcentral-in-document-return-false/65735/2 "2021-07-01T20:33:35Z")

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Hi,

Please refrain from duplicating topic in the future.

See my answer :

> [@Passthrough Node](https://forum.dynamobim.com/t/passthrough-node/65727/7):
>
> Hi, You try to use a different kind of document not compatible with custom nodes : I don’t know what are the actions you perform before synchronizing. The problem is not in the custom node but in your definition. With current document : [synchronize]