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Open this page in an AI assistant with a ready-made prompt.

Opens a third-party service and shares a pre-filled prompt containing this public page URL, its product documentation URL and /llms.txt. No VirtoSoftware account or tenant data is included. Provider terms and privacy policies apply. Verify answers against the linked documentation.

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Substring Text

This activity allows extracting substring from the text and store result in variable.

Substring Text activity settings for extracting a substring by start index and length into a variable

You should specify the zero-based starting character position of a substring in this instance and the number of characters in the substring, if length is -1, length will be ignored.

SharePoint Workflow Designer Phrase

Extract substring from this text, starts at 0, length -1 and store in Variable: variable.

Parameters

ParameterDescription
this textOriginal text
start indexThe zero-based starting character position of a substring in this instance.
lengthThe number of characters in the substring. Set -1 to ignore length.
variableThis activity will place result into an output variable
Updated on August 12, 2026