update existing object
This block is part of the object group and was last modified in core v10.4.28.
Fields Selection Required
This block relies on fields that you selected to perform its data actions. You must manually select the fields you want to use in your flow using the fields selector modal. To access the modal, click the white button on the block.
Field Selection Required
This block requires field selection (in). You must manually select the fields you want to work with using the field selector modal. To access the modal, click the white button on the block.
update existing object v10.4.28 Updates existing object with given fields.
- Object required
objectObject data to update fields in, the original object will be updated. Reference unsafe function.
- mutations
mutationsMutations to apply. Can be used to increase counters or set custom fields. Will be set before any of the selected fields.
- Output
object
MUTATES the input object IN PLACE and outputs the SAME reference -- every other holder of that object sees the changes. Applies the mutations pin FIRST, then writes the selected field pins with type coercion, so a field pin WINS over a mutation on the same path. Missing input starts from {}; a connected field pin resolving null writes that type's default (0, false, {}).
update fields |
update |
A typical wiring for update existing object: update document feeds the original_update_object pin; the object out pin feeds reply in JSON.

Commonly used with
In production blueprints, this block is most often wired together with:
- get fields: feeds into this block. Gets the selected fields from the given object.
- reply in JSON: this block feeds into it. Reply to any httpconnection as JSON body.
- update document: feeds into this block. Update document in the given storage and creates a revision for it.
- execute: feeds into this block. Executes the given funcion and waits for it to be executed.
- get document: feeds into this block. get a specific document based on the given GUID.
- create document: feeds into this block. Creates a document in the given storage.
Used in these guides
These documentation pages use or explain this block:
- Third-Party Integrations
- Common Blueprint Patterns
- Object References and Copies
- Tips & tricks
- Block Quick Reference
- Finding Blocks
Version history
Introduced in v10.4.28.
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