which practice is an important to grow brand image than sales?

Brand management is a communication function that includes analysis and planning on how that brand is positioned in the market, which target public the brand is targeted at, and maintaining a desired reputation of the brand.
It is important first to identify how your brand communicates with customer..
Developing brand image imp than increasing sales volume..
Brand essence is the primary focus for every customer.

Which practice is important growing brand image than sales; what brand image are we talking of here, is it the image attributes of the brand team (brand story board, positioning, etc) or the consumers perception of the brand, think we should be talking here of the later since its associated to sales.
Think we can grow brand image in two ways, negatively (poor or no sales) or positively (sales and greater sales).
Here we will consider the positive scenario.
From the above perspective of growing brand image we should duel on communication; What are we communicating and How is it done.
The what we should be communicating on should be the brand values (real values) and or the DPP (direct product profitability).
Communicating on the brand values and or DPP, we should highlight and emphasis on all or the key brand values and if these values are perceive by consumers as real and true, we must have developed on brand image, Secondly, the how, this will be translated through efficiency in all we do at all levels, all actions should be backed by quality and exactitude - professionalism, ethics, efficiency, and applying the possible best practices in industry, these will also grow brand image.
Not withstanding, a strong and efficient distribution network can equally develop on brand image even of a mediocre brand; it may not be long lasting for the mediocre brands but it must have saved the company from financial mess or embarrassment.

Dear, Basics bro...
Availability, Visibility, Right Price

It is simply a matter maintaining & managing the brand image in a way that reflects the company's objectives and/or brand guidelines; but more specifically, customer service/customer satisfaction is crucial to this point, since that is how the customer will perceive the company.

First it is important to create a brand, but you cannot sustain a brand if you cannot sell it. So selling is equally important or rather more important over a period of time.

you have to have in the market all the time to show customers you are desperate to sell your product which is known as famous and with the reasonable price. marketing is the main factor for the sales

the most important thing in the brand growth is quality of the product this will actually maintain the image and the growth of the brand, and also will automatically give the product high level of sales.

Brand image is the general impression of a product held by real or potential consumers either it may be before or after sales, maintaining and assuring the brand quality is very important before and after sales 

you sale benifits not goods

It's Brand Management not Brand Marketing where you will manage what will be known about your brand and prevent any miss understanding to your vision and your products as well.

Brand is very important ...But most important is the country of origin