---
title: Simulate workflow steps 
slug: nftportal/simulate-workflow-steps
docTags: 
createdAt: 2022-05-31T20:03:21.000Z
---

It's a lot of work to create an arts collection. Once the artist has created his artworks, he needs to prepare all the artifacts to be minted. As this requires manual data input using the CSV, errors may happen. The tool comes with extend validation features trying reduce errors as much as possible. To support the artist the tool can simulate (Trial Run) the generation of the artifacts and/or mass upload. This way, the input data can be validated, costs calculated, etc. without actually generating or minting anything.

To run a workflow step in trial mode, i.e. simulate, the `--try` option is available for almost all commands

```shell
Usage: signumart-massup collection create|init [options]

Creates a new Collection

Options:
  -t, --try   Runs without creating anything on chain. Good for testing purposes
  -h, --help  display help for command

```

Here an example for `collection commit`

```shell
$> signumart-massup collection commit --try

=================== TRIAL RUN ====================
Nothing will be generated
================================================

Found Collection
┌─────────────┬─────────────────────┐
│   (index)   │       Values        │
├─────────────┼─────────────────────┤
│     Id      │      '6666666'      │
│    Name     │   'Dry Run Test'    │
│ Description │ 'Just a local test' │
│  Homepage   │         ''          │
│   Socials   │         ''          │
└─────────────┴─────────────────────┘
? Do you want to continue preparing the NFTs data for upload? Yes
✔ Congratulations. All data is valid
┌─────────────────────────────┬────────────────┐
│           (index)           │     Values     │
├─────────────────────────────┼────────────────┤
│            Count            │      499       │
│        Auction Count        │       0        │
│       For Sale Count        │      499       │
│     Not For Sale Count      │       0        │
│    Minimum Total Amount     │ '499000 SIGNA' │
│    Attribute Keys Count     │       5        │
│  Distinct Attributes Count  │       6        │
│ Items With Attributes Count │       5        │
│      Validation Errors      │       0        │
└─────────────────────────────┴────────────────┘

*** TRIAL run finished. No artifacts were created.
```