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This process tool plugin allows you to create/update/delete topics, and submit message messages to topics on the Hedera DLT.
See Hedera Consensus Service for more info.

Note
titleNote
  • Do ensure that the admin account has sufficient balance for the required transaction fee to create topic topics and send message messages to a topic.
  • To update or delete a topic, an Admin Key must be specified during the creation of the topic.

Plugin Properties

Configure Hedera Topic Management Tool

NameDescription
Operator IDPaste in your operator account ID, according to the selected network typeSee Hedera Default Backend Configuration.
Operator Key

Paste in your operator account private key, according to the selected network type.

Network Type

Select the network you are working on:

  • Mainnet
  • Previewnet
  • Testnet
Note
iconfalse
"Mainnet" uses real-world value. Please use "Previewnet" or "Testnet" for testing purposes.
Operation Type

Select an operation for the topictype to perform:

  • Submit Message
  • Create Topic
  • Update Topic
  • Delete Topic

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NameDescription
Topic ID

The unique ID of an existing topic on the Hedera DLT.

Can use a Hash Variable that points to a stored topic ID.

Message

Insert a custom message to submit to the specified Topic ID.

Also accepts Hash Variable that points to a stored message.

Require Submit Key

Check this option to acquire a Submit Key of a if you are interacting with a private topic.

Submit Key

This property will only appear when Require Submit Key is checked.

Only accepts Hash Variable that points to the topic's submit key.

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NameDescription
Admin Key

Select an admin for the topicto allow update and deletion of topics:

  • Disabled
  • Operator
  • Custom
Admin Account Mnemonic Phrase 

This property will only appear when Admin Key is Custom.

Only accepts Hash Variable that points to the admin account's encrypted stored mnemonic phrase.

Set as Private Topic

Check this option to create a private topic.

Note
iconfalse
"Submit Key"

By enabling private topic, a submit key will be auto-generated

for a private topic

.
To submit any messages to private topics, it requires this submit key.

Topic Memo

Insert a custom topic memo.

Also accepts Hash Variable that points to a stored topic.

Operation (Update Topic)

NameDescription
Topic ID

The unique ID of an existing topic on the Hedera DLT.

Can use a Hash Variable.

Admin Key

Select new admin for the the admin that controls this topic:

  • Operator
  • Custom
Admin Account Mnemonic Phrase 

This property will only appear when Admin Key is Custom.

Only accepts Hash Variable that points to the admin account's encrypted stored mnemonic phrase.

Modify Admin Key

Select option to modify Admin Key:

  • No Change
  • Remove
  • Replace to Operator
  • Replace to Custom
New Admin Account Mnemonic Phrase 

This property will only appear when Admin Key is Replace to Custom.

Only accepts Hash Variable that points to the new admin account's encrypted stored mnemonic phrase.

Modify Submit Key

Select option to modify Admin Key:

  • No Change
  • Remove
  • Replace
Modify Topic Memo

Select option to modify Admin Key:

  • No Change
  • Remove
  • Replace
New Topic Memo

This property will only appear when Modify Topic Memo is Replace.

Insert new topic memo to replace old topic memo.

Also accepts Hash Variable that points to a stored topic.

Operation (Delete Topic)

NameDescription

Topic Topic ID

ID

The unique ID of an existing topic to mark as deleted on the Hedera DLT.

Can use a Hash Variable.

Admin Key

Select an admin for the the admin that controls this topic:

  • Disabled
  • Operator
  • Custom
Admin Account Mnemonic Phrase 

This property will only appear when Admin Key is Custom.

Only accepts Hash Variable that points to the admin account's encrypted stored mnemonic phrase.

...

Name

Description

Topic ID

This property will only appear when Operation Type is Create Topic.

To store the topic ID of the created topic.

Submit Key

This property will only appear when Operation Type is Create Topic when Set as Private Topic is checked,and Update Topic when Modify Submit Key is Remove or Replace.

To store the Submit Key created for a private topic.

Topic Current Sequence

This property will only appear when Operation Type is Submit  Submit Message.

To indicate the latest sequence number of messages on the topic.

Topic Current Hash

This property will only appear when Operation Type is Submit Message.

To indicate the hashed messageslatest SHA-384 running hash of the topic.

Is Transaction Validated

To indicate if this transaction has been successfully validated.

Consensus TimestampTo store the timestamp of when the majority of the network members received the transaction. At this point, the transaction becomes final and verifiable.
Transaction IDTo store the transaction ID of the transaction performed.
Transaction Explorer URLTo store an auto-generated URL to see transaction details on a public ledger explorer. Default is Hashscan.

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